JP2021071203A - Dryer, and drying method - Google Patents

Dryer, and drying method Download PDF

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JP2021071203A
JP2021071203A JP2019195989A JP2019195989A JP2021071203A JP 2021071203 A JP2021071203 A JP 2021071203A JP 2019195989 A JP2019195989 A JP 2019195989A JP 2019195989 A JP2019195989 A JP 2019195989A JP 2021071203 A JP2021071203 A JP 2021071203A
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drying
outside air
blower
outdoor air
dried
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岡村　聰一郎
Soichiro Okamura
聰一郎 岡村
勉 志田
Tsutomu Shida
勉 志田
大桐　哲雄
Tetsuo Ogiri
哲雄 大桐
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Taiheiyo Cement Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

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Abstract

To provide an energy-saving and environmentally friendly dryer or the like that can be installed in an area with an underdeveloped infrastructure.SOLUTION: A drying device 1 comprises: a cooling part 2 that removes moisture contained in outdoor air G1 by letting the outdoor air flow in the ground or in water and be cooled; a heating part 4 that heats outdoor air G2 flowing from the cooling part using sunlight S; and a drying part 5 that dries a drying object M using outdoor air G3 flowing from the heating part. The drying part can dry the drying object by letting the outdoor air flowing from the heating part flow through the drying object from the lower part through the upper part thereof, in a storage container or a storage site 5. The drying device comprises blowers 3, 6 that convey outdoor air G1 to G4, and sunlight may be used as a power source of the blowers. The blower that conveys outdoor air (the first blower 3) may be disposed between an outlet of the cooling part and an inlet of the heating part.SELECTED DRAWING: Figure 1

Description

本発明は、乾燥装置及び乾燥方法に関し、特に、廃石膏ボード、バイオマス材等のリサイクル資源を乾燥させる技術に関する。 The present invention relates to a drying apparatus and a drying method, and more particularly to a technique for drying recycled resources such as waste gypsum board and biomass material.

産業分野において乾燥工程は極めて重要であり、工業的に大量に効率よく乾燥が必要な鉱業分野では、古くから石油燃料や電気エネルギーを主要エネルギーとした乾燥設備が開発され、導入されている。 The drying process is extremely important in the industrial field, and in the mining field where a large amount of industrial drying is required efficiently, drying equipment using petroleum fuel or electric energy as the main energy has been developed and introduced for a long time.

一方、近年では、家屋解体で生じる廃石膏ボードのハンドリング性を改善したり、水分を多く含む草木、実、殻等を乾燥させてバイオマス燃料とするニーズがあり、乾燥対象物にリサイクル資源が加わってきている。 On the other hand, in recent years, there has been a need to improve the handleability of waste gypsum board generated by demolition of houses, and to dry plants, fruits, shells, etc. that contain a lot of water to use as biomass fuel, and recycled resources have been added to the objects to be dried. It's coming.

しかし、近年の安全及び環境への配慮に対する意識の高まりによって、法令上の基準に関係なく、新規の廃ガス発生設備、すなわち石油燃料や電気エネルギーを利用した乾燥装置等の設置が困難になりつつある。また、乾燥コストや環境負荷の削減のため、省エネルギー化を図る必要もある。 However, due to the growing awareness of safety and environmental considerations in recent years, it is becoming difficult to install new waste gas generation equipment, that is, drying equipment that uses petroleum fuel or electric energy, regardless of legal standards. is there. It is also necessary to save energy in order to reduce the drying cost and environmental load.

さらに、草木等のバイオマス材は、受電や化石燃料の輸送のためのインフラが十分に整っていない地域で発生することが多く、このような地域でも実現可能な乾燥装置等が求められている。 Further, biomass materials such as vegetation are often generated in areas where the infrastructure for receiving power and transporting fossil fuels is not sufficiently prepared, and there is a demand for a drying device or the like that can be realized even in such areas.

そこで、本発明は、上記従来の技術における問題点に鑑みてなされたものであって、インフラが十分に整っていない地域にも設置可能で、環境配慮型及び省エネルギー型の乾燥装置等を提供することを目的とする。 Therefore, the present invention has been made in view of the above-mentioned problems in the conventional technology, and can be installed in an area where the infrastructure is not sufficiently prepared, and provides an environment-friendly and energy-saving drying device and the like. The purpose is.

上記目的を達成するため、本発明は、乾燥装置であって、外気を地中又は水中を通して冷却し、外気に含まれる水分を除去する冷却部と、該冷却部からの外気を太陽光を用いて加熱する加熱部と、該加熱部からの外気を用いて乾燥対象物を乾燥させる乾燥部とを備えることを特徴とする。 In order to achieve the above object, the present invention is a drying device, in which a cooling unit that cools the outside air through the ground or water to remove moisture contained in the outside air and sunlight from the cooling unit are used. It is characterized by including a heating unit for heating and a drying unit for drying an object to be dried using the outside air from the heating unit.

本発明によれば、石油燃料等を利用せず、自然エネルギーを利用するため、廃ガスやばいじんが発生せず、環境に配慮した省エネルギー型の乾燥装置を提供することができ、インフラが整備されていない地域にも設置することができる。 According to the present invention, since natural energy is used without using petroleum fuel or the like, it is possible to provide an environment-friendly energy-saving drying device that does not generate waste gas or dust, and the infrastructure is improved. It can be installed in areas where it is not.

上記乾燥装置において、前記乾燥部は、保管容器又は置場において、前記乾燥対象物の下部から上部に前記加熱部からの外気を通風して前記乾燥対象物を乾燥させることができる。これにより、簡単な構成で効率よく乾燥対象物を乾燥させることができる。 In the drying device, the drying unit can dry the object to be dried by ventilating the outside air from the heating unit from the lower part to the upper part of the object to be dried in the storage container or the storage place. As a result, the object to be dried can be efficiently dried with a simple structure.

また、前記外気を搬送する送風機を備え、該送風機の動力源を太陽光とすることで、乾燥に要するエネルギーをより一層削減することができる。 Further, by providing a blower for transporting the outside air and using sunlight as the power source of the blower, the energy required for drying can be further reduced.

さらに、前記外気を搬送する送風機を備え、該送風機を前記冷却部の出口と前記加熱部の入口の間に配置することで、送風によって生じる圧縮熱を外気の加熱に利用することができる。 Further, by providing a blower for transporting the outside air and arranging the blower between the outlet of the cooling unit and the inlet of the heating unit, the compression heat generated by the blower can be utilized for heating the outside air.

また、本発明は、乾燥方法であって、外気を地中又は水中を通して冷却して外気に含まれる水分を除去し、該水分を除去した外気を太陽光で加熱し、該加熱した外気を用いて乾燥対象物を乾燥させることを特徴とする。 Further, the present invention is a drying method, in which the outside air is cooled in the ground or through water to remove the moisture contained in the outside air, the outside air from which the moisture has been removed is heated by sunlight, and the heated outside air is used. It is characterized in that the object to be dried is dried.

本発明によれば、石油燃料等を利用せず、自然エネルギーを利用するため、廃ガスやばいじんが発生せず、環境に配慮し、省エネルギーに貢献する。また、インフラが整備されていない地域でも実現可能である。 According to the present invention, since natural energy is used without using petroleum fuel or the like, waste gas and dust are not generated, the environment is considered, and energy saving is contributed. It is also feasible in areas where infrastructure is not well developed.

以上のように、本発明によれば、インフラが整備されていない地域にも設置可能で、環境に配慮した省エネルギー型の乾燥装置等を提供することができる。 As described above, according to the present invention, it is possible to provide an environment-friendly energy-saving drying device or the like that can be installed even in an area where infrastructure is not developed.

本発明に係る乾燥装置の第１の実施形態を示す全体構成図である。It is an overall block diagram which shows the 1st Embodiment of the drying apparatus which concerns on this invention. 気温と飽和水蒸気量の関係を示すグラフである。It is a graph which shows the relationship between the air temperature and the saturated water vapor amount. 本発明に係る乾燥装置の第２の実施形態を示す全体構成図である。It is an overall block diagram which shows the 2nd Embodiment of the drying apparatus which concerns on this invention.

次に、本発明を実施するための形態について図面を参照しながら詳細に説明する。 Next, a mode for carrying out the present invention will be described in detail with reference to the drawings.

図１は、本発明に係る乾燥装置の第１の実施形態を示し、この乾燥装置１は、外気を冷却する冷却部２と、冷却部２からの外気Ｇ２を太陽光Ｓを用いて加熱する加熱部４と、乾燥対象物Ｍを乾燥させる密閉型の置場（乾燥部）５と、外気Ｇ１〜Ｇ４を搬送する第１送風機３及び第２送風機６とで構成される。 FIG. 1 shows a first embodiment of a drying device according to the present invention, in which the drying device 1 heats a cooling unit 2 for cooling the outside air and an outside air G2 from the cooling unit 2 using sunlight S. It is composed of a heating unit 4, a closed storage place (drying unit) 5 for drying the object to be dried M, and a first blower 3 and a second blower 6 for transporting outside air G1 to G4.

冷却部２は、水中又は地中に設けられ、内部を通過する外気Ｇ１を冷却して外気Ｇ１に含まれる水分を除去する。 The cooling unit 2 is provided in water or underground and cools the outside air G1 passing through the inside to remove the moisture contained in the outside air G1.

第１送風機３は、冷却部２からの外気Ｇ２を加熱部４へ搬送すると共に、送風によって生じる圧縮熱を利用して外気Ｇ２を加熱する。また、第２送風機６は、乾燥に利用した後の外気Ｇ４を大気へ放出するために設置される。これらの送風機３、６は、乾燥装置１の設置箇所において、自然エネルギー（太陽光、水力、風力）を利用した発電によって生じた電力を動力源とすることで省エネルギーを図ることができる。 The first blower 3 conveys the outside air G2 from the cooling unit 2 to the heating unit 4, and heats the outside air G2 by utilizing the heat of compression generated by the blower. Further, the second blower 6 is installed to release the outside air G4 after being used for drying to the atmosphere. These blowers 3 and 6 can save energy by using electric power generated by power generation using natural energy (solar energy, hydraulic power, wind power) as a power source at the installation location of the drying device 1.

加熱部４は、全体がガラス材料等で構成され、内部を通過する外気Ｇ２を太陽光Ｓで加熱する。 The heating unit 4 is entirely made of a glass material or the like, and heats the outside air G2 passing through the inside with sunlight S.

置場５で乾燥させる乾燥対象物Ｍとしては、廃石膏ボードや、水分を多く含む草木、実、殻等のバイオマス材等が挙げられる。置場５に堆積する乾燥対象物Ｍの下方から外気Ｇ３が導入され、乾燥対象物Ｍを乾燥させた後、乾燥対象物Ｍの上方から出て行く外気Ｇ４をフード５ａを介して外部に排出する。 Examples of the object M to be dried to be dried in the storage place 5 include waste gypsum board, biomass materials such as plants, fruits, and shells containing a large amount of water. The outside air G3 is introduced from below the drying object M deposited in the storage place 5, and after the drying object M is dried, the outside air G4 exiting from above the drying object M is discharged to the outside through the hood 5a. ..

次に、上記構成を有する乾燥装置１の動作について、図１及び図２を参照しながら説明する。 Next, the operation of the drying device 1 having the above configuration will be described with reference to FIGS. 1 and 2.

第１送風機３によって、外気Ｇ１を冷却部２に取り入れ、冷却部２によって湿度を低下させた外気Ｇ１を２０℃程度まで冷却し、外気Ｇ１に含まれる水分を除去する。冷却部２からの外気Ｇ２を、第１送風機３によって加熱部４へ搬送し、加熱部４内で太陽光Ｓを用いて８０℃程度まで加熱する。 The outside air G1 is taken into the cooling unit 2 by the first blower 3, and the outside air G1 whose humidity is lowered by the cooling unit 2 is cooled to about 20 ° C. to remove the moisture contained in the outside air G1. The outside air G2 from the cooling unit 2 is conveyed to the heating unit 4 by the first blower 3, and is heated to about 80 ° C. using sunlight S in the heating unit 4.

加熱部４で加熱された外気Ｇ３は、一度冷却して水分を除去した後加熱されたものである。図２に示すように、２０℃の飽和水蒸気量は約１７ｇＨ２Ｏ／ｍ３であり、８０℃の飽和水蒸気量は約２９０ｇＨ２Ｏ／ｍ３であるため、この温度差による飽和水蒸気量の差Ｄを利用し、外気Ｇ３を置場５内の乾燥対象物Ｍに直接接触させて効率よく乾燥させることができる。乾燥後の外気Ｇ４をフード５ａを介して第２送風機６から大気へ放出する。 The outside air G3 heated by the heating unit 4 is heated after being cooled once to remove water. As shown in FIG. 2, the saturated water vapor amount at 20 ° C. is about 17 gH 2 O / m 3 , and the saturated water vapor amount at 80 ° C. is about 290 gH 2 O / m 3 , so that the saturated water vapor amount due to this temperature difference Using the difference D, the outside air G3 can be brought into direct contact with the object to be dried M in the storage place 5 to be efficiently dried. The dried outside air G4 is discharged from the second blower 6 to the atmosphere via the hood 5a.

以上のように、本実施の形態に係る乾燥装置１は、石油燃料等を利用して過剰加熱せず、自然エネルギーを利用するため、石油燃料を燃焼させた場合のような廃ガスやばいじんが発生せず、インフラが整備されていない地域にも設置することができる。 As described above, since the drying device 1 according to the present embodiment does not overheat by using petroleum fuel or the like and uses natural energy, waste gas and dust as in the case of burning petroleum fuel are generated. It can be installed in areas where it does not occur and the infrastructure is not well developed.

図３は、本発明に係る乾燥装置の第２の実施形態を示し、この乾燥装置１１では、上記図１の乾燥装置１の加熱部４を置場５の上部ではなく、加熱部１４としてフードを有しない置場１５から別置している。この乾燥装置１１によっても、上記と同様の効果を奏すると共に、設置面積は増加するが、フードを省略するなど、置場１５の構成を簡略化することができる。 FIG. 3 shows a second embodiment of the drying device according to the present invention. In the drying device 11, the heating unit 4 of the drying device 1 of FIG. 1 is used as the heating unit 14 instead of the upper part of the storage space 5. It is placed separately from the storage area 15 that does not have it. The drying device 11 also has the same effect as described above, and the installation area is increased, but the configuration of the storage space 15 can be simplified by omitting the hood.

尚、上記実施の形態では、第１送風機３を冷却部２の出口と加熱部４、１４の入口の間に配置し、第２送風機６を置場５、１５の下流側に配置したが、送風機３、６の配置はこれらに限定されず。第１送風機３をその他の場所に設けたり、１台の送風機で賄うことも可能である。また、送風機３、６の動力源も上記のものに限定されない。 In the above embodiment, the first blower 3 is arranged between the outlet of the cooling unit 2 and the inlets of the heating units 4 and 14, and the second blower 6 is arranged on the downstream side of the storage areas 5 and 15. The arrangement of 3 and 6 is not limited to these. It is also possible to provide the first blower 3 in another place or to cover it with one blower. Further, the power sources of the blowers 3 and 6 are not limited to those described above.

さらに、乾燥対象物Ｍを乾燥させる密閉型の置場５、１５を設置したが、密閉型の保管容器とすることもできる。また、置場５、１５等における加熱した外気の通風方法も上記実施の形態に記載のものに限定されない。 Further, although the closed type storage places 5 and 15 for drying the object to be dried M are installed, a closed type storage container can also be used. Further, the method of ventilating the heated outside air in the storage areas 5, 15 and the like is not limited to the one described in the above embodiment.

尚、乾燥対象物Ｍの種類によっては、大気へ放出する外気Ｇ４に水銀等が含まれることが懸念される場合がある。そのような場合には、必要に応じてスクラバー等を通して外気Ｇ４を循環利用してもよい。 Depending on the type of the object to be dried M, there is a concern that the outside air G4 released to the atmosphere contains mercury or the like. In such a case, the outside air G4 may be circulated through a scrubber or the like as needed.

以上、本発明の実施形態について説明したが、本発明は、上述した本発明の実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内で様々な変形や応用が可能である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments of the present invention, and various modifications and applications are possible without departing from the gist of the present invention. ..

１ 乾燥装置
２ 冷却部
３ 第１送風機
４ 加熱部
５ 置場
６ 第２送風機
１１ 乾燥装置
１４ 加熱部
１５ 置場
Ｓ 太陽光
Ｇ１〜Ｇ４ 外気
Ｍ 乾燥対象物 1 Drying device 2 Cooling unit 3 1st blower 4 Heating unit 5 Storage area 6 2nd blower 11 Drying device 14 Heating unit 15 Storage area S Sunlight G1 to G4 Outside air M Drying object

Claims (5)

外気を地中又は水中を通して冷却し、外気に含まれる水分を除去する冷却部と、
該冷却部からの外気を太陽光を用いて加熱する加熱部と、
該加熱部からの外気を用いて乾燥対象物を乾燥させる乾燥部とを備えることを特徴とする乾燥装置。 A cooling unit that cools the outside air through the ground or water and removes the moisture contained in the outside air.
A heating unit that heats the outside air from the cooling unit using sunlight, and a heating unit.
A drying apparatus including a drying unit for drying an object to be dried using the outside air from the heating unit. 前記乾燥部は、保管容器又は置場において、前記乾燥対象物の下部から上部に前記加熱部からの外気を通風して前記乾燥対象物を乾燥させることを特徴とする請求項１に記載の乾燥装置。 The drying apparatus according to claim 1, wherein the drying unit dries the object to be dried by ventilating outside air from the heating unit from the lower part to the upper part of the object to be dried in a storage container or a storage place. .. 前記外気を搬送する送風機を備え、該送風機の動力源を太陽光とすることを特徴とする請求項１又は２に記載の乾燥装置。 The drying apparatus according to claim 1 or 2, further comprising a blower for transporting the outside air, wherein the power source of the blower is sunlight. 前記外気を搬送する送風機を備え、該送風機を前記冷却部の出口と前記加熱部の入口の間に配置することを特徴とする請求項１、２又は３に記載の乾燥装置。 The drying apparatus according to claim 1, 2 or 3, further comprising a blower that conveys the outside air, and the blower is arranged between the outlet of the cooling unit and the inlet of the heating unit. 外気を地中又は水中を通して冷却して外気に含まれる水分を除去し、
該水分を除去した外気を太陽光で加熱し、
該加熱した外気を用いて乾燥対象物を乾燥させることを特徴とする乾燥方法。
Cool the outside air through the ground or water to remove the moisture contained in the outside air.
The outside air from which the moisture has been removed is heated by sunlight,
A drying method comprising drying an object to be dried using the heated outside air.
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